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4.1 What is the active control newsletter?

In the late 1990’s, there was a monthly newsletter about active control called "Active Sound & Vibration Control News". It is no longer published.

4.2 What companies produce active control products?

Some readers may wish to contact vendors for product literature. The following companies, LISTED IN ALPHABETICAL ORDER, produce active noise control products. No endorsement of any kind is implied by inclusion in this list, nor is this meant to be a complete list.

There are many other companies that produce system components or are involved in active control research and development -- far too many to list here. The companies listed below are only companies that produce commercially available products intended specifically for active noise control.

bulletABS GmbH Jena, Wildenbruchstraße 15, 07745 Jena, Germany, Tel: +49 3641 675400, Fax: +49 3641 675410, email
bulletANR Headsets, 2955 Fawn Drive, Burlington, KY 41005,,
bulletActive Vibration Control Instrumentation, PCB Piezotronics, Inc., 3425 Walden Ave. Depew, NY 14043-2495, phone 716-684-0001
bulletBBN Physical Systems & Technologies, 70 Fawcett St, Cambridge, MA 02138, phone 617-873-3533, fax 617-873-2918, email (Dr. E. Frank Berkman, Technical Director).
bulletCausal Systems Pty Ltd., P.O. Box 100, Rundle Mall, South Australia 5000, Australia, phone 61.8.303.5460, fax 61.8.303.4367, e-mail (Colin Hansen),
bulletdSPACE Inc., 22260 Haggerty Road, Suite 120, Northville, MI 48167, phone 810.344.0096, fax 810.344.2060, email, Web (search for DSPACE once there).
bulletHeadsets, Inc., 2330-B Lakeview, Amarillo, Texas 79109, USA, phone 806.358.6336, fax 806.358.6449, Paige Brittain, President.
bulletNoise Cancellation Technologies, Inc., Headquarters: Stamford, Connecticut, 203.961.0500 (Joanna Lipper). Engineering facilities: Linthicum, Maryland, USA, 410.636.8700,
bulletPeltor Inc., 41 Commercial Way, E. Providence, RI 02914, Phone: 401.438.4800, Fax: 401.434.1708
bulletWalker Electronic Silencing, Inc. (formerly Walker Noise Cancellation Technologies), .
bulletSennheiser Electronic Corporation & Neumann USA, 6 Vista Drive, P.O. Box 987, Old Lyme, CT 06371, TEL 860.434.9190, FAX: 860.434.1759,,
bulletSennheiser electronic GmbH & Co. KG, D-30900 Wedemark,,
bulletSennheiser (Canada) Inc., 221 Labrosse Avenue, Pointe-Claire, Quebec, Canada, H9R 1A3, TEL: 514.426.3013/800.463.1006, FAX: .514.426.3953/800.463.3013,,
bulletTechnofirst, Parc Technologique et Industriel de Napollon, 399, Avenue des Templiers, 13676 Aubagne Cedex France, Tel(33) 4 42 03 46 60, Fax (33) 4 42 03 06 43,,
bulletUltra Electronics Ltd., .
bulletAlso: Bose, David Clark, Sony, others

4.3 What universities teach active noise control?

Some readers may wish to contact universities regarding curricula that include active noise control. At this point, it is safe to say that ALL major engineering programs teach at least one course that discusses active noise control. The following schools, LISTED IN ALPHABETICAL ORDER, have reasonably extensive graduate research programs in active noise control. No endorsement of any kind is implied by inclusion in this list, nor is this meant to be a complete list.

bulletCork Institute of Technology, Ireland
bulletDelft University of Technology, Delft, Netherlands
bulletDuke University, Durham, North Carolina, USA, Professor Robert Clark, Director, Center for Applied Control, 919-660-5435,,
bulletGeorgia Institute of Technology, Atlanta, Georgia, USA
bulletNorwegian University of Science and Technology, Trondheim, Norway
bulletMassachusettes Institute of Technology, Cambridge, Massachusetts, USA
bulletNorthern Illinois University, DeKalb, Illinois, USA
bulletOld Dominion University, Norfolk, Virginia, USA
bulletPennsylvania State University: The Graduate Program in Acoustics, Penn State University, PO Box 30, State College, PA 16804, Phone (814) 865-6364, Fax (814) 865-3119
bulletPurdue University, West Lafayette, Indiana, USA
bulletRWTH Aachen, Germany,
bulletSouthampton University, Southampton, England
bulletTechnical University of Denmark, Denmark
bulletTechnical University of Berlin, Germany
bulletTechnical University of Erlangen, Germany
bulletTechnical University of Munich, Germany
bulletTechnical University of Stuttgart, Germany
bulletUniversity of Adelaide, Adelaide, South Australia, Australia,
bulletUniversity of Auckland, New Zealand, Prof Marshall,, Dr. George Dodd
bulletUniversity of Goettingen, Germany
bulletUniversity of Hamburg, Germany
bulletUniversity of Karlskrona/Ronneby, Ronneby, Sweden
bulletUniversity of London/Royal Holloway, Egham, Surrey, England
bulletUniversity of Salford, England
bulletUniversite de Sherbrooke, Sherbrooke, Quebec, Canada
bulletUniversite de Technologie de Compiegne, Compiegne, France
bulletUniversity of Utah, Salt Lake City, Utah, USA
bulletVillanova University, Philadelphia, Pennsylvania, USA
bulletVirginia Polytechnic Institute & State University, Blacksburg, Virginia, USA

4.4 How can I learn more via the Internet?

When this section was first assembled in 1994, it listed nearly every existing Web site that even mentioned ANC - all ten of them. Today, not only are there far too many ANC Web sites to list here, but modern Web search engines such as Google have made such lists largely obsolete.

The abbreviated list below includes only a handful of the available sites. Inclusion in this list does not imply any sort of product endorsement, and there are many worthwhile sites not listed here. To find out more using a Web search engine, search for the phrase "active noise control".

For an up-to-date list of links, try this page at

Another useful site is Virginia Tech's Vibration and Acoustics Laboratory, which includes a software program that can perform a simple active noise control demonstration using a PC:

Other excellent sites, such as the one maintained by Causal Systems Limited, contain plenty of technical detail for those who want more than this FAQ provides. These excellent resources may be found at:

Here are some other resources that deal with general acoustics and vibration topics:

bulletThe Acoustics FAQ:
bulletIf you have access to USENET newsgroups, check out the following: news:alt.sci.physics.acoustics (general acoustics) news:comp.dsp (digital signal processing)
bulletCheck out the new home page of the Acoustical Society of America:
bulletPenn State University has an excellent acoustics home page: is a math and physics resource that includes information on sound and speech processing:

4.5 Are there short courses about active control?

This section formerly listed short courses that discuss active noise control. I removed the entire list because I cannot keep it current.

4.6 References from the general literature

This section formerly contained references to articles from popular sources, i.e., non-technical magazines that you might find in a public library. I removed the entire list because I cannot keep it current.

4.7 References from the technical literature

This section formerly contained references to textbooks and technical journal articles. I removed the entire list because I cannot keep it current.

4.8 Are there any bibliographies of active control articles?

Dr. Dieter Guicking has compiled a comprehensive bibliography of patents on active control of sound and vibration. This database is available as a CD-ROM that also includes a 90-page report giving an overview of active control patents. Pricing is surprisingly affordable. For details, follow this link:

Copyright (c) 1994-2007 by Christopher E. Ruckman. All Rights Reserved.



This site was last updated 02/04/07